United States. Bureau of Foreign and Domestic Commerce. (1923). Improving foreign trade statistics. GPO.
Chicago Style (17th ed.) CitationUnited States. Bureau of Foreign and Domestic Commerce. Improving Foreign Trade Statistics. [Washington]: GPO, 1923.
MLA (9th ed.) CitationUnited States. Bureau of Foreign and Domestic Commerce. Improving Foreign Trade Statistics. GPO, 1923.
Warning: These citations may not always be 100% accurate.